Gas-burner



E. J. DOLAN, GAS BURNER.

(Application filed m. 19, 1896.)

No. slams. Patented Dec. 27, i898.

(No Model.)

Witnesses. Inventor.

Attorney.

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UNITED STATES PATENT @rricn.

EDIYARD J. DOLAN, F PHILADELPHIA, PENNSYLVANIA.

GAS-BURN ER.

SPECIFICATION forming part of Letters Patent No. 616,828, dated December 27, 1898.

Application filed November 10, 1896. Serial No. 611,588. (No model.)

To aZZ whom it may concern:

Be it known that I, EDWARD J. DOLAN, of

the city and county of Philadelphia and State' of Pennsylvania, have invented an Improvement in Gas-Burners, of which the following is a specification. 7

My invention has reference to gas-burners; and it consists of certain improvements which are fully set forth in the following specification and shown in the accompanying drawings, which form a part thereof.

Great difficulty has been experienced in providing asuitable burner adapted to burn acetylene gas owing to the fact that the acetylene is very rich in carbon matter and under contact with a highly-heated surface has a tendency to carbon deposition, produced by the dissociation of its component parts, in which case the deposited carbon closes the orifices and destroys the proper action of the burner. In view of the great richness of acetylene gas it is essential to employ exceedingly small apertures, and for this reason there is greater tendency to clog the burner than in the case of burners where larger orifices are employed.

The object of my invention is to produce an acetyleneburner in which a stream of acetylene gas is divided into two fine oblique conical jets substantially of equal pressure, which are directed toward each other, so as to meet in open space, whereby the fine jets of acetylene gas form inverted cones and the gas is burned in a direction away from said stream. Furthermore, I prefer to make the two nozzles or jets for the gas substantially so that if from any defective working due to lack of pressure particles of carbon should be deposited the same would be readily detached and fall away from the nozzles.

My. invention will be better understood by reference to the accompanying drawings, in which- Figure 1 is a sectional elevation of an acetylene burner embodying my improvements, and Fig. 2 is a similar sectional elevation of a somewhat modified construction of same.

A is a burner-cylinder spun up in the ordinary way and adapted to fit upon any gasfixture. I

B is the usual screen, though this may be omitted,ifdesired. In the construction shown in Fig. 1 the upper part of the cylinder is spun out, as at D, and supports a plate E at the top, having the tip-apertures 6, formed by punching through and drawing down the metal.

O O are two lava burner-tips having apertures f, preferably made conical and with their orifices at the top arranged at an angle to a vertical line, so that the two oblique orifices of the two tips direct the acetylene-jets in such a direction that they meet at a distance above the burner-tips, as indicated by the clot-ted lines, forming below the said point and the flame a space J. In the drawings the dotted lines indicating the flame have only been shown to indicate the vertical position of the flame, but which as a matter of fact would lie in a plane at right angles to that shown. It will be observed from this that the acetylene-jets pass some distance beyond the burner-tips before they meet and constitute the illuminating-flame. The rapid motion of the acetylene gas throughthe .very small central orifice drawing into contact with the escaping gas the surrounding body of air prevents the deposit of carbon around the burner-tip, as it occurs in the ordinary flat topped burner. This tip is more enduring, without clogging, than such ordinary fiat-topped tip. Furthermore, if from any cause carbon becomes dissociated and tends to fall it will pass around the burner-tips and into the space J and not clog the orifices. I also prefer to make the eX- treme tips F conical or pointed, so that the orifices open through the extreme point, to avoid the formation of any flat surface which could in any manner hold or sustain any deposits. I also prefer to form the apertures f in the tips somewhat conical, so as to direct the jet with considerable force out of the tip, and at the same time to make the main part of the orifice large to avoid clogging.

Referring to Fig. 2, we have two burnertips united in one concrete piece provided with a neck which fits into the top of the burner-cylinder,very much as in the case with the ordinary lava tip. The entire concrete structure is indicated by the letter S and is formed with the vertical passage-way H through its neck, opening into a horizontal passage-way G, which connects at each end with the oblique tapering passage-ways f of the two burner-tips F proper. In making this tip S it may be formed of lava, and after molding the apertures G and f the moldingtools may be withdrawn and the entrance closed by plugs of lava, as at I, and the entire tip then securely baked or burned.

In both of these constructions we have the same gen eral characteristicsnam el y, the two distinct tips, having their orifices directed obliquely upward, so as to cause the gases to impinge upon each other at a distance above the tips, whereby the illuminating-flame is formed out of contact with the said tips. A blue flame commences at the burner-tip, but does not have the same effect in depositing carbon as though the illuminating-flame was in close proximity thereto.

It will be observed that inthe method or process of burning the gas by the employment of my improved burner we have the acetylene gas first delivered in the burner under a uniform pressure, then subdivided into two jets of gas of equal pressure directed obliquely upward, so as toimpinge upon each other in open space, and burning the gas in a plane at substantially right angles to the jets, in contact with air on all sides, the result of which process secures the perfect combustion of the rich acetylene gas by the proper supply of the necessary oxygen and at the same time avoids the danger of carbon deposition by producing the flame wholly surrounded by air. This is also benefited by the upward draft or suction created on the air by the two jets of gas.

I do not in this specification claim the process or processes of burning acetylene gas herein described, having filed a divisional application therefor on the 27th day of June, 1898, Serial No. 6S4t,6 l3; nor do I claim, broadly, an acetylene-burner by which two streams of gas are caused to meetin space independent of the details of construction specifically claimed in the claims of the present patent, the broad idea of said burner bein; involved in said divisional application.

\Vhat I claim as new, and desire to scour by Letters Patent, is-

1. In a burner, the combination of 13W1 burner-tips having conical ends thereby pre senting substantially an edge at the point 0 exit of the gas and arranged obliquely up ward and each having an exceedingly smal orifice opening from its apex, the tips being directed toward each other whereby the je of gas emitted from each tip impinges upor the other jet at a considerable distance abovi the tips to form the luminous flame out 0: contact with said tips and no appreciabh surface is formed on the tips to heat the gas as it emerges and hold the deposited carbon 2. In a burner, the combination of tw( burner-tips having conical ends provided witl: tapering orifices terminating in extremel3 small apertures opening through the apexes of said conical ends and arranged obliquely upward and directed toward each other Where by all of the jet of gas emitted from each tip impinges upon the other jet at a considerable distance above the tips to form the luminous flame out of contact with said tips and prevent carbon deposit, and a clearance-space is formed between the orifices of the burnertips and extending to some distance below them.

3. In a burner, a metal base in combination with a lava or refractory head having two burner-tips provided With tapering circ ular orifices arranged obliquely upward and directed toward each other whereby the jet of gas is supplied freely to and emitted from the extreme end of each tip and impinges upon the other jet at a considerable distance above the tips to form the flame out of contact with said tips.

In testimony of which invention I have hereunto set my hand.

EDWARD J. DOLAN.

Witnesses:

R. M. HUNTER, J. XV. KENVVORTHY. 

